Hydrogen peroxide biosensor based on the bioelectrocatalysis of myoglobin incorporated in multi-walled carbon nanotubes/chitosan composite film

被引：0
|
作者：
Duan, Lian-Sheng [1 ,2 ]
Xu, Qiao [1 ]
Xie, Fen [1 ]
Wang, Sheng-Fu [1 ]
机构：
[1] Hubei Univ, Coll Chem & Chem Engn, Wuhan 430062, Peoples R China
[2] Hubei Univ Educ, Dept Chem & Life Sci, Wuhan 430205, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2008年 / 3卷 / 02期
关键词：
direct electrochemistry; electrocatalysis; myoglobin; chitosan; MWNTs;
D O I：
暂无
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Myoglobin/multi-walled carbon nanotubes/chitosan film (Mb/MWNTs/Cs) electrodes were fabricated based on cross-linking myoglobin ( Mb) with multi-walled carbon nanotubes/chitosan (MWNTs/Cs) composite film coated on a glassy carbon electrode ( GCE). Direct electrochemistry and electrocatalysis of Mb on the Mb/MWNTs/Cs/GCE were studied. The Mb/MWNTs/Cs/GCE exhibited excellent electrocatalytic activity and rapid response for H2O2 in the absence of a mediator. The linear range of detection towards H2O2 was from 3.79 x 10(-5) to 5.50 x 10(-4) mol L-1 by the method of amperometric i-t curve. The Mb/MWNTs/Cs/GCE had good repeatability and stability for the determination of H2O2.
引用
收藏
页码：118 / 124
页数：7
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